In the figure three identical conducting spheres form an equilateral triangle of side length d = 16.1 cm. The sphere radii are much smaller than d and the sphere charges are q = -2.20 nC, q = -5.36 nC, and qc = +8.63 nC. (a) What is the magnitude of the electrostatic force between spheres A and C? The following steps are taken: A and B are connected by a thin wire and then disconnected; B is grounded by the wire, and the wire is then removed; B and Care connected by the wire and then disconnected. What now are the magnitudes of the electrostatic force (b) between spheres A and C and (c) between spheres B and C?
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